Printing Apparatus Selective Retransmission Error Classification

Solution Overview

Problem

Existing printing apparatuses face issues in maintaining image quality and tint consistency when retransmitting print jobs due to format errors, often resulting in redundant printing and unintended image quality issues.

Innovation Solution

A printing apparatus with a detection unit to identify unprocessible data, a determination unit to classify errors as first or second error information, and a transmission unit to selectively retransmit print data based on this classification, allowing for controlled retransmission or not based on error type.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If print data is retransmitted in a different format when an error occurs, then the printing apparatus can process the print job, but the image quality and tint may differ from the intended output

Engineering Contradiction:

Improveprint job processing reliabilityVSAvoidimage quality consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The error information is segmented into two distinct types: first error information (which permits retransmission) and second error information (which prohibits retransmission). This segmentation allows the system to differentiate between errors that can be resolved by format conversion and those that cannot, thereby maintaining image quality consistency while ensuring processing reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes the parameter of error information classification by introducing a binary distinction (first vs. second error information) based on whether retransmission is permissible. This parameter change enables selective format conversion only when appropriate, preserving image quality while ensuring job completion.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If print data is retransmitted when an error occurs, then the print job can be completed, but some pages may be redundantly printed

Engineering Contradiction:

Improveprint job completionVSAvoidprinting efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The printing apparatus performs preliminary analysis of the print data to determine in advance whether retransmission is permissible. By classifying errors before execution and communicating the classification to the information processing apparatus, the system prevents redundant printing of pages that have already been successfully processed, thereby maintaining productivity while ensuring job completion.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by transmitting error information from the printing apparatus to the information processing apparatus, which then decides whether to retransmit. This feedback loop prevents redundant printing by allowing the information processing apparatus to skip pages that were already successfully printed, thereby improving printing efficiency while ensuring job completion.

Inventive Principle:

Principle #23Feedback

3Reliability

If the printing apparatus constantly attempts retransmission in a different format, then print jobs can be processed, but the user cannot acquire output with intended image quality and tint

Engineering Contradiction:

Improveprint job processingVSAvoidimage quality fidelity

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The error information is segmented into two distinct types: first error information (which permits retransmission) and second error information (which prohibits retransmission). This segmentation allows the system to differentiate between errors that can be resolved by format conversion and those that cannot, thereby maintaining image quality consistency while ensuring processing reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes the parameter of error information classification by introducing a binary distinction (first vs. second error information) based on whether retransmission is permissible. This parameter change enables selective format conversion only when appropriate, preserving image quality while ensuring job completion.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12105995B2Printing apparatus and method for controlling the same for notifying of occurrence of an error

Publication Date: 2024.10.01 CANON KK

AI summary

There is provided a printing apparatus that performs printing based on print data received from an information processing apparatus transmitting print data to the printing apparatus, transmitting print data as a substitute for the print data based on first error information, and not transmitting the print data as a substitute for the print data upon receipt of second error information. The printing apparatus includes a detection unit configured to detect that the print data includes data that cannot be processed by the printing apparatus, a determination unit configured to determine error information to be transmitted to the information processing apparatus as the first or second error information based on information included in the print data having been detected to include the data that cannot be processed by the printing apparatus, and a transmission unit configured to transmit the error information determined by the determination unit to the information processing apparatus.